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Heat and pressure generated design

a technology of heat generation and pressure generation, applied in the field of fibre-based panels, can solve the problems of crazing of the surface of the deepest structure, and achieve the effects of optimizing the water resistance of the locking system area, reducing the cost of formulation, and increasing chemical and mechanical properties

Inactive Publication Date: 2011-07-21
VÄLINGE INNOVATION AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]This makes it possible to create and control the colour variation and match it with structure variations.
[0022]A reversed condition could also be used. Having higher binder content in the lower part gives a gradient of flow to both the board and the upper part that can make it possible to have a saturated surface area between the board and the lower part.

Problems solved by technology

Deeper structures tend to give crazing of the surface due to insufficient pressure in parts of the board area and the limitation of stretching of the paper layers.

Method used

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  • Heat and pressure generated design
  • Heat and pressure generated design
  • Heat and pressure generated design

Examples

Experimental program
Comparison scheme
Effect test

example 1

High Structure, Normal Pressure

[0042]Scattered amount: 600 g / m2

Carrier board: 8 mm HDF

Backing: 2 layers of NKR 140

Structure plate: 0.7 mm Slate Structure

Pressure: 45 kg / cm2,

Contact time: 25 sec

Press plate temperature: 160° C.

One Surface Layer—Scattered Homogenously

[0043]

ComponentWt-%Melamine Formaldehyde resin33Wood Fibre43Wear Resistant Particles: Aluminum Oxide13Coloring Substance: Titanium Dioxide11Sum100

[0044]The mass ratio between Melamine Formaldehyde Resin and dry components (Wood Fibre, Coloring Substance) is equal to 61%. The mass ratio between Melamine Formaldehyde Resin and Wood Fibre is equal to 77%. The resulting product is a homogenous off white product.

example 2

High Structure, Normal Pressure

[0045]Scattered amount: 600 g / m2

Carrier board: 8 mm HDF

Backing: 2 layers of NKR 140

Structure plate: 0.7 mm Slate Structure

Pressure: 45 kg / cm2,

Contact time: 25 sec

Press plate temperature: 160° C.

One Surface Layer—Scattered Homogenously

[0046]

ComponentWt-%Melamine Formaldehyde resin47Wood Fibre25Wear Resistant Particles: Aluminum Oxide17Coloring Substance: Titanium Dioxide11Sum100

[0047]The mass ratio between Melamine Formaldehyde Resin and dry components (Wood Fibre, Coloring Substance) is equal to 131%. The mass ratio between Melamine Formaldehyde Resin and Wood Fibre is equal to 188%. The resulting product is a substantially homogenous off white product with some whiter spots at the ridges of the embossed structure.

example 3

High Structure, Normal Pressure

[0048]Scattered amount: 600 g / m2

Carrier board: 8 mm HDF

Backing: 2 layers of NKR 140

Structure plate: 0.7 mm Slate Structure

Pressure: 45 kg / cm2,

Contact time: 25 sec

Press plate temperature: 160° C.

One Surface Layer—Scattered Homogenously

[0049]

ComponentWt-%Melamine Formaldehyde resin65Wood Fibre17Wear Resistant Particles: Aluminum Oxide11Coloring Substance: Titanium Dioxide7Sum100

[0050]The mass ratio between Melamine Formaldehyde Resin and dry components (Wood Fibre, Coloring Substance) is equal to 271%. The mass ratio between Melamine Formaldehyde Resin and Wood Fibre is equal to 382%. The resulting product is a substantially homogenous off white product with many whiter spots at the ridges of the embossed structure.

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Abstract

A wood fibre based panel with surfaces layer with lower parts which has less binders than the upper parts. Also, a method of manufacturing a building panel having a structured surface with a design that has colour variation in register with the structure obtained by a varying pressure distribution applied on the surface.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present application claims the benefit of U.S. Provisional Application No. 61 / 295,520, filed on Jan. 15, 2010, and claims the benefit of Swedish Application No. 1050040-3, filed on Jan. 15, 2010. The entire contents of each of U.S. Provisional Application No. 61 / 295,520 and Swedish Application No. 1050040-3 are hereby incorporated herein by reference.TECHNICAL FIELD[0002]The disclosure generally relates to the field of fibre-based panels with wear resistant surfaces for building panels, preferably floor panels. The disclosure relates to building panels with such wear resistance surface and to production methods to produce such panels.BACKGROUND[0003]Laminate flooring typically consists of layers of different materials that are compressed under heat to form a laminated board. The typical layers are an aluminum oxide containing melamine resin impregnated alfa cellulose paper, a melamine resin impregnated printed decorative paper, a wood...

Claims

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Application Information

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IPC IPC(8): B32B5/02B05D1/36
CPCB44C5/0476E04C2/246E04F13/0871Y10T428/249924Y10T428/24995B32B21/08B44C5/04E04C2/24E04F15/02
Inventor ZIEGLER, GORANLINDGREN, KENT
Owner VÄLINGE INNOVATION AB
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